Machine for reducing the section of metal blanks.



P.M.HAA& MACHINE FOR REDUCING THE SECTION 0F METAL BLANKS. A PPLIOATION FILED DBO. 21, 1912.

1,072,0Q1- A Patented sep1;.2,`1913.

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Patented Sept. 2, 1913.

' MAGHINBPOR RBDUGING THE SECTION of .METAL BLANKS.

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TNEssE: A y vffl/? Y P. M. HAAS. MACHINE FOB RBDUCING THE SECTION 0F METAL BLANKS.

APPLICATION I'ILBUDEO. 21I 1912. 1,072,001. -Y Patented s epn2,1913.

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-l-APPLIUATIOH FILED DEG. 21, 1912. 1,072,001.v Patent-,ed septrz, 1913.

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- cheapen the range the rolls 'the United States, have invented or 'will be simple in brought to a. position iu front of'such` and in line withthe axis of Iot'ation'offksaid PATENT OEEICE.A

PHILIP M IIAAs, or YoUNGsToWmoHIo,

MACHINE Eon REDUCING TIIE SECTION OEMETAL BLAH-xs. l

specification of Letters ratent. l Patented Sept. 2, 1913.

` Application filed December 21, 1912. ASerial No. 737,976.

Toall ghgi z'may convent.

Nefit-'known that I, PHILIP M. HAAS, residing al Youngstown, in the county .of Mahoning and State of Ohio, a citizenaof 1S- covered certain new and useful Improvements' in Machines for Reducing the Section ofMetal Blanks, of whichimprovements the following is a specilication.

My invention relates to machines forre ducing the section 'of metal blanks' such?. as rods or tubes,and has to do particularly with a machine adapted tok reducetheends of baripreliminary to their'beingdrawn through dies so that such bars may be Suitembodiment of -my"inve'ntit'mshq 1n 'the ably gripped for such4 drawing. A

The object of my invention is to provide a machine for the purpose described, which construction, effec-tive in' and which will expedite andv reducing of such rods or tubes.' In the accompanying drawing, which forms part of my specification I have iliustrated the preferred embodiment' of my vinvention.- V.

Figure 1 of these drawings is a plan view of such embodiment; F ig'. 2 an elevation thereofi Fig. 3 4a vertical sectional View taken on the broken line III-L-III, Fig. 2; Fi 4 a sectional' view taken on. the line I -IV, Fig.' 3j; Fig, 5 a vsectional -view taken on the line V-j-V, Fig. .4; Fig. 6- a. longitudinal sectional lviefw taken on the line VI--VI, Fig. '1; Fig....'i end view of the' rotatable head; Fig. 8 `.sectional view taken on the line VIII- VII I Fig. 7; and 9 a Asectional view takeii'ion the line IX`I Fig. 7. In the several figures like numerals are used 'to designate like parts. In the' ractice of my invention Iv provide a rotatab e head, and within such head, and aboutthe axis of' rotation thereof, I mount operation,

` 'aplurality of freely rotatable rolls th': arse-f' ed radiali with relation to the axis 9 tq' the of which are inclined to, but do not li'e' a plane passing' hr'ough and including-,the axis of rotationoff' said head. A lso I arso their peripheries are at equal distances fromthe axis of rota-tion of said head, such distances being less than the radius of a blank to be reduced. When the rotatable head, having the rolls larranged therein as described, is suitably driven, a rod or other blank to -be reduced will, wheln ro s head, be engaged by the rollsand dragged lthrough and between them-having its section reduced to a diameter equal' to twice'the dis? tance of the rolls, from the axis of rotation `I' provide means for driving said carriage blank' to b'ereduced and tohold it"if1"opera head' order to pull the blank, borne bysaldjcarriage, from engagement by said rollsfand" against the action' thereof tending jtodraw lthe blank in the opposite direction,

' away-from'said head. Referring now more partcula'rly` erwin ,QI mount the-headirlupqna'eha'f 2, whit:l 1s suitably supported' 1nbearigs A3 and 4, and is d riveri'byak moto 1 5, or other sourceof power, through` gear wheels 6 and having -a lconvex '-cur'ved' periphery,i and is a. suitable pin 11. The` ca sings are held 'of'a clampin trarne 12 yadapted to be secured to the eadlbyl bolts 13, and by set screws 14 'extendin'gt rough the head and abutting against the outer ends of the cas.- ngs.' Also, in order to guide 'al' rod entering the rolls, suitable adjust-able guide plates are heldin theindesired positions by' set Screws, 17.

In the operation of mv inachine,`as thus 'far described, the roll casings lare adjustend that t e periphery of each roll 8 will be at a distance from t e'axis`9 equal to lthe radius of the required reduced rod,4 Also, the casings 10 are further adjustedang'uf larly abouttheir own axes so that tile axes of the rolls 8 will be in a plane exclusive 'of the the axes of the rolls 8`with`irelationfto'the axis 9 will depend on the directon'of rotation of the head 1:;an`d thefnontof such I"provide `means fordriving said carriage Two reducing rolls't 'are shownmounted.. inthe head-1 on 'op' osite sides o ftheaxis mounted within Yitsca'sixig 10 by means ofA in their desired relative 'positions by means` 15 are secured to the head 1 by bolts 16 and plane of the axis 9. AAs will be readily understood the direction of Inclination of of said head. Coperating with said head- .ave pasaran `in .front of aid rou-preview@ inclination may best be Varied inversely 1 with relation to the size of the blau-listo be upon as describedjthe carriage 1.8 is s operated upon and directly with relation 'to' the `ductility thereof. ,When suchadjust-z p ment has'been effected, a blank, suitably held against rotationand brought to position in Contact vwith the rolls 8, will be engaged by" -sueh rolls, the head 1` beingv rapidly rotated,

and, by being dragged between. them, the blank will have--itssectionreduced' to adiameter equal tothe spacing` ofthe rolls.

Having reference 'no w to `the means for handling a blankfof material to be operated mounted ,upon-, a suitable frame, =1 9. clamp, adjustable to' receive any desiredfsize of blank, is secured to the top f the carringe, and consists of an adjustableblock` 20,

and a movable and adjustable block-21.- The movement of the block' 21 r is effectedf asv shown, by means of a lever,l 22and toggle 231- Secured tothe central bottom' Yportion-of the l' car/ringe 18 is a -rack 24 adapted to. be engaged' by a pinion 25. keyed to a shaft. 26,

which in turn -is rotatably mounted'in the frame 19. Two -means are secured to the shaft 26 for rotating it inorder to move th carriage, such means consisting. of a hand wheel 27 and a worm wheel 28.. iThe worni wheel 28 is driven by a-.su itable-wormfgear 29 secured to 'a shaft 30, which inaybe driven through the belt wheel 31, belt 32 and belt wheel 33, secured to the-shaft 2. In order to move the'jworm gear 29 from-oper ative .engagement with the wheel 28,'-v the 'shaft 30 is pivotally mounted in a yoke 34; and, in order to support the freeend of' the shaft 30 in its alternate raised and lowered positions, `I `mount theouter end of. Said shaft in a casing 35, which in turn is mov-l ably secured to, ysupplemental frame 36 S- cured to thelni in frame -19 by means ofv 35 bybolts 37.. AThe attachment ofthe casig to the frame 36 preferably eh'ect means ofrbolts 38, whose heads 39 engage the inner wall ofthe casing 36, and which move through slots 40 therein. The casing'35, and the shaft 30 `mounted therein, are held in raised positionby means of a trigger 41,`

which is pivotally mountedl in. the casing 35, and which rests on a ledge 42 formed in the supplemental frame 36. The said trigger is held yieldingly in ledge-,engaging position by means of a slpring43; and a trip 'linger 44 is secured to said trigger and liesin-the' path of a projecting abutment 45'adiustably secured to the movable carri-a. e 18, the arrangement Being-such that, w' enfsaid carringe (in moving awa-y from, ghe head 1)4 reaches a predeterminedpomt, t e abutment lease thef trigger 41'from .its iup orting ledge 42, letting-thefra'me 35 and aft30 drop untilthe bolts1-38lrest in the .hottomof the slots 40. 'To Atheend that the abutment idably lrolls mounted in said head', and means for driving saidhead.

.'45 maybe'adjusted with relation to thecarriage 18., said abutment is preferably secured 'to a Vbar'l46- provided with slots 47 through which yb olts .;48 extend into the carriage 18. f

In the drawings .I have Shown a rodA 49 clamped to the carriage 18, theend of the rod havmgbeen reduced by the action of or reducln the end of a rod, the rodis {irs't securedto t .ecarriage 18 between the clamping blocks ndi-21, such bloekshaving' :been pre-anta ged to engaged arod of a known diameter and to-hold such rod in line .the rollprovidedhead 1. In thus pointing,

with the aXisof rotation 9 .or the head 1. f

The carria eis then advanced to a position in front o said lhead by turning the hand wheel 2,7, such movement beinfr effected through shaft 26, pinion 25, and rack 24.

be ldrawn between. such rolls, and the earriagewill-be. dragged along with it. In this opera-tion it will-be understood-that the shaft 30 is in lowered position, :so that the worm 'gear 29 is not in 'engagement wlth the worm wheel 28. The desired length ofthereduced sectionof the bar 49" bein predetermined, van abutmentjma ube .placed advance' ofthe' ar, and in thisidisclosirre' theend of the shaft 2 affords 'suchfan abutment. r :After the rod has been.y reduced the .required amount theshaft'BO i'sraised until ,the worm 2 9 thereon engages the worm 'wheel 28, and in such position the rotation ofthe shaft-30 will (through the worm gear 29 worm wheel 28, shaft 26, pinion 25 and When the rod is' engaged'bv 'the rolls :8 iii f vthe head'f.1,".which togetherwith the shaft g 30 ispreferably rotated continuously, it will inthe path of rack.24')'be eifective to move the carriage causes the trigger 41 to move from the seat 42, the result being that tbe rod 30 drops and thewithdrawing movement of the car- *.riage is stopped. 'Asecond rod may then be clamped to -the carriage 18 Iand -the operation repeated, as'will be readily understood.

- I'claini herein asmy. invention:

'1.' In. a machine for reducing the-section of a metal blank, 'the-combination. of a rotatable"head,va.p1uralit of freely rotatable axis of rotation thereof, the airis of rotation "of said head lying in aplanef exclusive of the axes of rotation .of said rolls, means for permitting the adjustment ofthe axes of rotation 'offsaid-rolls radiall andangularly withrelationto the axis o rotation of said iso 2. In a machine for reducing the section of a metal blank, the combination ofja rotatable head, a plurality of..,rollca,rrying easings mounted iii/said head, a''plural ity` of freely rotatable rlls mounted .in Said-'casef ings and arranged` about the Iaxis of rot/ation 'of said head,said roll'easings bein mounted ,/for two adi'is'tments, whereby sai rolls may be adjuste radially and angularlyfwith -relation/to the axis of rotation/of said head,l

and'ineans for driving said liea'd.

'Ina machine for reducing the sectionl of a metal blank, the combination of a rotatable head, a plurality of cylindricalv rollcarryingcasings mounted in said head and having their axes radially arran ed/with re'- lation to .the axis of rotation o Isaid head,

provided with means for engaging a metal,v

blank to be reduced by said head, means or,

advancing said carriage toward said/head,

separate means for withdrawing,,saidi earv, riage, and means for drivingv said vhead.

Y rolls mounted--infsaid ead and abqiittlie 5. In a machine for reducing'the section of a metal blank, the c/mbination 'of a r0- tatable head, a/pluralit of freely rotatable C. axis of rotation thereof, a movable carriage rovided with means for engaging. a.- metal lank to' be operated upon by said head,

means for moving said carriage and a blank '40 g :borne thereby carriage-moving means being adapted to be away from said head, said rendered ineffective after the blank borne by said carriagehas been withdrawn. from the; i A 45.-

bite vof'sal rolls. l

6. In a machine for reducing the section "of a metall blank, the combination of a rotatable head, a plurality of ,freely rotatable rollls mounted in said head and about the axis of rotation thereof, a"blaiiksustaining\5o carriage movable to and from said head, means for driving said carriage, and a rotatable driving shaft movable to and from en- Y gagement with said carriage-driving means.

7. In a machine for reducing the section of metal blanks, the combination of a rotatable liead, a plurality of freely rotatable rolls mounted in said head, a blanksustain f C ing carriage movable to and fromsaid head .I

Vcai'riage-driving mechanism including a 60 roovablyi-mounted rotatable shaft, means for holding said shaft in carriage driving'pos'- tion-,fand means for rendering said holding means ineffective when said carriage' reaches a r'a predetermined point.

Iii testimony whereof I have hereunto'set myliand.

rHiLiP Hans.

Witnesses JOHN fD. Hoven, FRANK H. VOGAN. 

